Microvolts to dBm Watt Conversion (50 ohms)
Vrms
dBm
Watts
μV
mV
V
W
0.7
-110
10 fW
1.1
-46
+14
0.025
0.8
-109
1.2
-45
+15
0.032
0.9
-108
1.4
-44
+16
0.04
1
-107
1.5
-43
+17
0.05
-106
1.7
-42
+18
0.063
-105
1.9
-41
+19
0.08
-104
2.2
-40
100 nW
+20
0.1 W
-103
2.5
-39
+21
0.13
-102
2.8
-38
+22
0.16
-101
3.1
-37
+23
0.2
-100
100 fW
3.5
-36
+24
0.25
-99
3.9
-35
+25
0.3
-98
4.4
-34
+26
0.4
-97
5
-33
+27
0.5
-96
5.6
-32
+28
0.63
-95
6.3
-31
+29
-94
7
-30
1 µW
+30
1 W
-93
7.9
-29
+31
-92
8.9
-28
+32
-91
9.9
-27
+33
2
-90
1 pW
11
-26
11.2
+34
-89
13
-25